milessabin/shapeless — pull request #152 by stacycurl (2014-06-29 13:10:26+00:00)
Title: Added HList.permutations & Tuple.permutations

+ HList.{mapCons, interleave, flatMapInterleave, mapTupler} that I used for the implementation. I can drop the syntax methods if they aren't useful otherwise & move all of the type classes into ops.Permutations

I haven't implemented Coproduct.permutations yet